Soul Survivor by Daniel de Lorne

An ancient craving. A dead world. Can one near-immortal save his heart as the planet descends into ruin?
2141. Five-hundred-year-old Emrys Stone hates that his hunger for human souls kills everything he touches. But supplies are scarce in Earth’s scorched landscape, and his kind are falling into anarchic chaos. When a ferocious insanity devours the remaining food source, Emrys’s last hope for survival lies in a desperate trek across the apocalyptic wasteland.
Almost at death’s door, Emrys stumbles on another colony and asks for shelter in return for his services as an assassin. But when he becomes a pawn between warring factions and falls for a handsome human warrior, his violent passions could cost him his cursed life.
Can Emrys survive the madness without destroying his own future in the land of the living?